کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7213932 | 1469459 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of self-healing, recyclable epoxy resins and low-electrical resistance composites based on double-disulfide bond exchange
ترجمه فارسی عنوان
آماده سازی خود درمان، رزین اپوکسی قابل بازیافت و کمپلاستیک های مقاومت کم الکتریکی بر مبنای مبادله پیوند دوسوالفیلد
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
Vitrimers have been emerged as a new class of polymers with many attractive properties of material processing such as reshaping, recycling and repairing. Herein, a new type of vitrimers (BDSER) based on thermosetting dynamic epoxy network with double disulfide bonds was synthesized by the reaction of a difunctional epoxy monomer containing disulfide bonds with 4,4â²-disulfanediyldianiline (4-AFD). Our results demonstrated that the relaxation time of BDSER at 200â¯Â°C was as short as 9â¯s without any catalyst. The storage modulus of BDSER was up to about 2.2â¯GPa and its glass transition temperature was higher than 130â¯Â°C. Additionally, the thermodynamic and chemical properties of BDSER were no significant loss after 3 cycles of continuous breaking/compression molding. Furthermore, the resistance of CNT/PPy/Vitrimer composites (CPV), synthesized by doped BDSER with the polypyrrole (PPy) decorated multi-walled carbon nanotubes (WMCNTs), was decreased to 109â¯Î© even the mass ratio was only 1%wt, which could be used a promising candidate as self-repairing materials in the field of antistatic.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 167, 20 October 2018, Pages 79-85
Journal: Composites Science and Technology - Volume 167, 20 October 2018, Pages 79-85
نویسندگان
Fengtao Zhou, Zijian Guo, Wenyan Wang, Xingfeng Lei, Baoliang Zhang, Hepeng Zhang, Qiuyu Zhang,